From Goodhertz about working with the latest version of Audirvana 3.5.29 …
" Hello! Thanks for writing in, and our apologies for the issue! Unfortunately there is a known issue with Audirvana being unable to correctly identify our plugins. We have heard that older versions of our plugins, like version 3.1, work correctly with Audirvana (older versions are available here if you scroll down: goodhertz.co/downloads), but for the moment we are waiting for a fix from the Audirvana developers …"